Power washing centrifugal separator



\ J. R. ORELIND POWER WASHING CENTRIFUGAL SEPARATOR July 15, 1952 Filed Sept. 8. 1947 2 Sl-IEETS-SHEET l u y 15, 1952 J. R. ORELIND POWER WASHING CENTR'IFUGAL SEPARATOR 2 SHEETS--Sl-IEET 2 INVENTOR. qfa jz A? oieha BYP I bowl.

Patented July 15, 1952 Newletsy This invention relates to a centrifugal sepaat the maximum internal periphery of the bowl and this opening is controlled by centrifugal valve means.

After the separating operation, washing liquid is introduced at the top of the separating bowl and upon a lowered speed of rotation" of said bowl the centrifugal valve means operates to permit the escape of the washing'liquid." Inthis manner the internal parts of the separating bowl -Joh n- R. )relin d,-:Wilrnette, Ill., assignor to Interfnational Harvestercompany a corporation of g are thoroughly washed without the necessity of disassembling the bowl parts. The centrifugal force of the water scours theinner surfaces of the .bowl so that power washing is effected. Powerwashing separators of this type are gen- "erally provided with a plurality of superposedseparating discs having center holes in align- 'ment with one another to provide a cylindrical space extending axially of the bowl. Th individual discs must have their surfaces thoroughly -cleaned and washed, and the separated inner peripheral edges of the discs provide the entrances for the washing liquid that flows between and scours the surface of the discs.

. It is exceedingly important that sufficient wash- "ing' liquid be directed toward the inner peripheral edges of the discs since the most difficult place to wash is at this location. It is desirable, therefore, to direct the washing fluid along the inner peripheral edges of the discs in a controlled and predetermined amount. 1

' Itis 'applicants prime object therefore to provide a construction wherein predetermined amounts of washin liquid can be efficiently directed toward the inner peripheries of the discs.

' It is another object to provide a power Washing cream separator bowl, said bowl having in "combination therewith a stationary deflector means arranged outside of said bowl for supplying" predetermined quantities of washing liquid to the inner parts of .the' separating bowl;

" Still another object is to provide a power washing cream separating bowl having in -combination therewith a stationary supply can providedfiwith an annular deflectordisc arranged to deflect predetermined quantities of'washin'g liquid directly "against the inner peripheral edges of a plurality "of rotating separating discs.

A. still further object is to provide a power washing cream separating bowl having in combination therewith a deflector means arranged out-- PoWsawAsmNG CENTR'IFUGA f SEPARATORT Application September s,194i;senrmlwgsar '4Claims. (class- 14) examination of the accompanying drawings.

In the drawings: 1 I Figure l is an elevational view, partially in section, of a power washing centrifugal separator structure.

Figure 2 is a sectional view taken along the line 2-2 of Figure 1.

-Figure 3 is a sectional view in elevation of a modified form of a deflector element for directing washing liquid to the cream separating bowl.

Figure 4 is a similar view showing a milk feed tube axially displaced above the deflector-element.

- Figure '5 is a detail view of adeflector element shown in Figure l. '1'

Figure 6 is a detail sectional view showing the washing liquid deflector as also shown in Figure 1'.

- Referring particularly to Figures '1 and 2, a centrifugal cream separator structure is generally designated by the reference character Ill. The cream separator structure I 0 includes'a revoluble separating bowl I I having an upper bowl portion I2 and a lower bowl portion I3. The separator bowl II is provided with a sloping I inner wall l4 joined at its lower end-by a downwardly extending annular rim IS. The upper bowl portion I2 also includes at its top. end a collar I6 having conventional skim milk outlets I'I. At the apex of the inner sloping wall I I with the downwardly extending rim l5 there is provided a substantially continuous washing liquid discharge outlet I8. 'The discharge outlet I8 is formed by means of a plurality of arcuate shaped openings I9 separated by a plurality of diverging. separator elements 28. The .upper bowl portion I2 and the lo'werbowl portion I3 are joined in telescoping'and assembled relation by means of'a snap split ring 2 I.

The separating bowl I I is providedwith a disc rating discs 22.

-rality of circumferentially spaced upwardly ex- I tending wings 23.

The wings 23 are spaced to provide a support for a centrifugal valve element or rubber'sealing ring indicated at I8 Each separating disc is provided with a plurality of eccentric openings 24 in alignment with one an- :other to form'a passageway 25.

A milk inlet tube 26 is centrally positioned for rotation therewith on the lower bowl portion I3. 1 The inlet-tube 26 is in communication with dis- 1 tributor chambers 21, only one of which is shown in thepresent disclosure. It is to be understood,

however, that each passageway 25 is in communication"jwith' latjleast one distributor chamber 21. Each disc is provided with a centrally disposed opening 28, and the inner peripheral edge of each opening is in alignment with the,

others to provide a substantially cylindrical space 29 extending axially of the bowl ll. 'A'skim'm'ilk dividing collar 30 is provided on the uppermost disc 22. z 1 The lower bowl portion li'l-isprovided with a. downwardly extending cream outlet 3|, the upper I :end of which is in communication withz-the cylindrical space 29. A driving member 32: projects upwardly into the lower bowl portion l3; The driving member 32 is driven by an electric power unit 33,2,and: is connected .to the bowl portion I 3 by meansof akey-M: I a

- A liquiol:supply; container 35 is :positioned above theiseparatingbowl,il I. 'Ifhe supply. container 35 includes;a-.discharge spout or conduit=3textending :downwardly toward theseparating bowl. The lower-end; of i the discharge spout, or :conduit' 36, is supported on an annular collarg3lforming the upper. endofga; stationary tinware structure generally designated by. the reference character 38.

The tinware structure 38 includes a skim milk receiving chamber 39. and; a cream receiving chamber 43. The skim milk receiving chamber 39-:is.infl communication with a; skim milk: discharge spouted! andthe cream receivingcham- =ber' 4jl1iiincommunication with;a cream discharge, spout M.

A.- .washing. liquidi deflector eleiment is; generally .:-desi nated'by,:the reference character =52; The

deflector &2 consists of an annular'disc shaped member 43;.havinga plurality of circumferentially downwardly -extending openings M and, acentrally disposed opening 45. The annular disc shaped member 43" is dished or slightly of tapering construction ;;so that imaginary; center lines through the openings. are non-parallel with reaspect- 't0,,-a center line. through; the disc membein. The openings, are angularlynpositioned to direct .the 7 liquid radially outwardly against the The deinraxialsaligmnent.withythemilk inlet tube 26 and extends downwardly "to ar -point terminating near the upper surface of the top separating -.disc .A valvemember El is seated-at the upper end: of-i-the;milkifeed-jtubeza for controllingthe :fiowzbf liquid through the-tapering conduitifl;

. -A modified embodiment of the: deflector q elementiislshown inl -liguresili' and .4. The separat- 1 rating bowl is I conventional.

'ithe supply can: 33 is free to course downwardly placement. of the valve element 5|.

4 tral opening5l2of the deflector element 55. A valve member Bl. provided for: regulating the flow of fluid through the tapering conduit 60-. Eigure 4 shows the axial displacement of the milk feed. tube,58 so that the relationship of the partsmay be more clearly apparent.

The separating operation of the cream sepa- Whole milk from through the: tapering conduit 50 upon the dis- The skim milk escapes through the skim milk openings [1 50. V i I vstreamsof ,washingliquid which descend through ibow d upply cannpartsherein shown-are theisameas in. the; previous figures and. therefore :the. same reference characters apply. The deflector; element. shown in thisp-embodimentv is generally designated. by the reference sch'aracter 55. The element 55; includes,a; plurality;ofspiral 1 fluted, openings; 5 6 ,and;- also;a1central y. disposed opening. .51; A mil-k feed j-tube;-58 having an annular shoulder- 53 isv axially; movable to close and ;.0nen he' is are 'rspout3 Themil edtu -5 8 -a l o -inqludes.;a; narrowfiaperingconduit 60,. I h -wbi ai a ap ed o.hens rtedi hrouentheen- 7a n enr e hi ved. pplicant-has flectorl element 42. downwardly into the milk inlet tube 25Lfand to the. skim milk receiving chamber 39. The cream leaves the bowl through the cream outlet 31; andthereupon flows into the cream receiving chamber- Theseparatingspeed may be some.- where near 10.000-RL P. Mb 7 1 After the A separating operation is completed, the operator fills the liquid-supply container 35 with a Washing liquid. The milk feed tube-481m thereupon axially displaced upwardly and washing; liquid thereupon descends downwardly through the discharge conduit 36. As the wash- 7 ing liquid engagesrtheeupper surface of the defiector elemen't 42; it is'divided into a plurality of individual streamshy means of the taperedopenings 4.4. The-taperedopenings 46 are so iarrang'ed that the individual streams of water arej'direc'te'd downwardly and radially. outwardly against-the inner peripheral edgesof the separating. discs. The individual streams ofwater are thereupon broken up. by the inner peripheral edges of the discs and the water .thereuponli's whirled centrife :ugally.outwardly between said discs. In, this manner asuflicient quantity. of washing}- liquid is properlydirectedto clean the mostf'difiicult surfaces, namely, the surfaces. of the separating discs; As ,thisrwater is whirledcentrifugally outwardlythe speed of rotationotthe separating bowl decreases until. a speed of approximately 6,000 R P, M. isreached. At this point the'valve ring- I 8; contracts. suihcientlyQtol ermit the washingfliquid to be discharged through the 3 discharge opening 48. A smallquantity of. washing jliqui'd descen'dsfthrou'gh the ceh'tral hole 45' of the'de- This quantity is, directed serves to wash, this tube andfthe. distributor chambers .21. I

The deflector. elementJlZ. is stationary. andl jthe the openings-Mare undisturbed until they vstrike the.inner-peripheral edges of the rotatingldisc pack; T Immediatelyupen striking these surfaces the streams are broken upand.particlesoflwater are pumped centrifugally.outwardly by. virtue of the .centrifugal.force'actuated by the'rotati g unnecessary. amounts ,-of washing liquid neednot be poured. into the separating bowl and thewashingliqui'd can.,be effectively. directed to the place where the greatest quantity oflliquid isfneeded.

The, operation- .of the embodiment, shown in 'Figures'3-and4 is substantially. the same as above .fdescribed... liquid is suitablydivided and directed againstjthe inner peripheral edges ofjthe separating discs'iby In this/construction the washing meansof'the spiral flutedopenings'id- .Itcan thus-beseen that the ob-jectsofthe-inprovided a deflector element which is stationarily positioned outside of a rotating bowl. This deflector element is constructed and arranged to direct predetermined quantities of washing liquid against the inner peripheral edges of the separating discs. Thus applicant directs the washing liquid to the place where it is most needed. It is to be understood that modifications and changes may be made in this construction which do not depart from the spirit of the invention as disclosed nor the scope thereof as defined in the appended claims.

What is claimed is: I

1. A power washing centrifugal separator comprising a rotatable bowl, a pack of frusto-conical discs within said bowl, sad discs having center holes, the inner peripheral edges of which are in substantial axial alignment with one another to form a substantially cylindrical space extending axially of said bowl, a milk inlet tube centrally disposed within said cylindrical space for rotation with said bowl, a discharge opening at the outer peripheral edge of said bowl, and centrifugal valve means for regulating the discharge of washing liquid from said bowl, the combination therewith of a stationary supply container positioned above said bowl, said supply container having a discharge conduit in axial alignment with and above the cylindrical space of said bowl, a milk feed tube within said discharge conduit, said milk feed tube being in axial alignment with said milk inlet tube. and a deflector means arranged above said bowl, said deflector means including a disc shaped element supported within said conduit above said bowl. said disc shaped element having a center hole encircling said milk feed tube and a plurality of radially disposed openings positioned angularly with respect to a center line through said disc and arranged outwardly of said center opening to direct individual streams of washing liquid radially outwardly against the inner peripheral edges of said separating discs.

2. In a power washing centrifugal separator comprising a rotatable bowl, a pack of frustoconical discs within said bowl, said discs having center holes, the inner peripheral edges of which are in substantial axial alignment with one another to form a substantially cylindrical space extending axially of said bowl, a discharge opening at the periphery of the bowl and centrifugal valve means for regulating the discharge of washing liquid through the discharge opening from the bowl, the combination therewith of a stationary supply container positioned above said bowl, said supply container having a discharge conduit in axial alignment with and above the cylindrical space of said bowl, a milk feed tube within said discharge conduit, said milk feed tube being of less cross-sectional dimension than said discharge conduit, a deflector supported within the discharge conduit, said deflector extending transversely across the conduit and having a centrally disposed opening encircling the milk feed tube, said deflector having deflecting portions disposed radially outwardly from the milk feed tube, the deflecting portions extending angularly with respect to a center line through said conduit to direct streams of washing liquid radially outwardly against the inner peripheral edges of the separating discs.

3. In a power washing centrifugal separator comprising a rotatable bowl, a pack of frustoconical discs within said bowl, said discs havin center holes, the inner peripheral edges of which are in substantial axial alignment with one ail other to form a substantially cylindrical space extending axially of said bowl, a discharge opening at the periphery of the bowl and centrifugal valve means for regulating the discharge of washing liquid through the discharge opening from the bowl, the combination therewith of a stationary supply container positioned above said bowl, said supply container having a discharge conduit in axial alignment with and above the cylindrical space of said bowl, a milk feed tube within said discharge conduit, said milk feed tube being of less cross sectional dimension than said discharge conduit, a deflector supported within the discharge conduit, said deflector comprising a disk extending transversely across the conduit and having a centrally disposed opening encircling the milk feed tube, said disc having deflecting openings disposed radially outwardly from the milk feed tube, the deflecting openings extending angularly with respect to a center line through said conduit to direct streams of washing liquid radially outwardly against the inner peripheral edges of the separating discs.

4. In a power washing centrifugal separator comprising a rotatable bowl, apack of frustoconical discs within said bowl, said discs having center holes, the inner peripheral edges of which are in substantial axial alignment with one another to form a substantially cylindrical space extending axially of said bowl, a discharge opening at the periphery of the bowl and centrifugal valve means for regulating the discharge of washing liquid through the discharge opening from the bowl, the combination therewith of a stationary supply container positioned above said bowl, said supply container having a, discharge conduit in axial alignment with the cylindrical space of said bowl, a milk feed tube within said discharge conduit, said milk feed tube being of less cross sectional dimension than said conduit, a deflector supported within said discharge conduit, said deflector extending transversely across said conduit and having a centrally disposed opening, the opening encircling said milk feed tube and said milk feed tube being axially removable with respect to said centrally disposed opening during a washing operation, said deflector having deflecting portions disposed radially outwardly from the milk feed tube, the deflecting portions extending angularly with respect to a center line through said conduit to direct streams of washing liquid radially outwardly against the inner peripheral edges of said separating discs.

JOHN R. ORELIND.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Sweden Jan. 26. 1929 

